Seasonal variability of surface phytoplankton in the Northern South China Sea: A one-dimensional coupled physical-biogeochemical modeling study
Geng, BX; Li, SY; Wang, DX; Hu, JT; Luo, L; Wang, SY; eeslsy@mail.sysu.edu.cn
2012
发表期刊AQUATIC ECOSYSTEM HEALTH & MANAGEMENT
ISSN1463-4988
卷号15期号:2页码:144-151
摘要The South China Sea is an oligotrophic marginal sea located in the tropical-subtropical Northwestern Pacific Ocean. Under the influences of monsoon winds, both the physical and biogeochemical processes exhibit distinct seasonal variability in the upper waters. In order to study the seasonal variations of surface phytoplankton, a one-dimensional coupled physical-biogeochemical model was developed and applied to the deep basins of the Northern South China Sea, away from the coastal upwelling regions. Forced under real-time surface monsoon winds and heat flux, the model reproduced the mixed layer depth, sea surface temperature and surface chlorophyll-a compared with satellite observations and previous reported values. In seasonal mean, the mixed layer depth was highest in winter (similar to 61.62 m) and lowest in spring (similar to 12.07 m). The sea surface temperature was lowest (similar to 25.05 degrees C) in winter and highest (similar to 29.20 degrees C) in summer. Furthermore, conspicuous phytoplankton blooms occurred in winter with the highest chlorophyll- a concentration up to similar to 0.21 mg m(-3). In other seasons, the concentration remained relatively low, especially in summer (similar to 0.05 mg m(-3)). The spatial distributions of phytoplankton were closely related with patterns of surface nutrient availability, as well as mixed layer depth and sea surface temperature. These relationships indicate that surface phytoplankton primary production was mainly controlled by nutrient availability, which was dominated by vertical turbulent diffusion in the deep basin of the northern Sea which is away from the coastal upwelling regions. Overall, our model results indicated that the seasonal variability of surface phytoplankton was modulated by coupled effects of physical and biogeochemical processes in the Northern South China Sea.
部门归属[Geng, Bingxu; Li, Shiyu; Hu, Jiatang; Wang, Siying] Sun Yat Sen Univ, Guangdong Prov Key Lab Environm Pollut Control &, Sch Environm Sci & Engn, Guangzhou 510275, Guangdong, Peoples R China; [Wang, Dongxiao; Luo, Lin] Chinese Acad Sci, State Key Lab Trop Oceanog, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China; [Hu, Jiatang] Dalhousie Univ, Dept Oceanog, Halifax, NS B3H 4J1, Canada
关键词Mixed Layer Depth Seasonal Variation Surface Phytoplankton
学科领域Ecology ; Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
语种英语
资助项目LTO
WOS记录号WOS:000306323300006
引用统计
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10239
专题热带海洋环境国家重点实验室(LTO)
通讯作者eeslsy@mail.sysu.edu.cn
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GB/T 7714
Geng, BX,Li, SY,Wang, DX,et al. Seasonal variability of surface phytoplankton in the Northern South China Sea: A one-dimensional coupled physical-biogeochemical modeling study[J]. AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,2012,15(2):144-151.
APA Geng, BX.,Li, SY.,Wang, DX.,Hu, JT.,Luo, L.,...&eeslsy@mail.sysu.edu.cn.(2012).Seasonal variability of surface phytoplankton in the Northern South China Sea: A one-dimensional coupled physical-biogeochemical modeling study.AQUATIC ECOSYSTEM HEALTH & MANAGEMENT,15(2),144-151.
MLA Geng, BX,et al."Seasonal variability of surface phytoplankton in the Northern South China Sea: A one-dimensional coupled physical-biogeochemical modeling study".AQUATIC ECOSYSTEM HEALTH & MANAGEMENT 15.2(2012):144-151.
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